15-57. The two toy cars A and B have a weight of 0.4 lb and 0.6 lb, respectively. A spring having a stiffness of 30 lb/ft is attached to one of them and the cars are pressed together such that the spring is compressed 0.2 ft. Determine the speed of each car after they are released from rest. Problem 15-57 A k = 30 lb/ft B

15-57. The two toy cars A and B have a weight of 0.4 lb and 0.6 lb, respectively. A spring having a stiffness of 30 lb/ft is attached to one of them and the cars are pressed together such that the spring is compressed 0.2 ft. Determine the speed of each car after they are released from rest. Problem 15-57 A k = 30 lb/ft B

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Determine the steady-state angle a if the constant force P = 195 N is applied to the cart of mass M = 16 kg. The cart travels on the slope of angle 0 = 25° The pendulum bob has mass m = 4 kg and the rigid bar of length L = 1.1 m has negligible mass. Ignore all friction. P M L m
The flat circular disk rotates about a vertical axis through O with a slowly increasing angular velocity w. Prior to rotation, each of the 0.52-kg sliding blocks has the position x = 28 mm with no force in its attached spring. Each spring has a stiffness of 430 N/m. Determine the value of x for each spring for a steady speed of 279 rev/min. Also calculate the normal force N exerted by the side of the slot on the block. The force N is positive if it pushes from the side labeled A. Neglect any friction between the blocks and the slots, and neglect the mass of the springs. (Hint: Sum forces along and normal to the slot.) Answers: X = wwwwwwww N = i i -74-74- mm mm mm N
The spring-mounted 0.62-kg collar A oscillates along the horizontal rod, which is rotating at the constant angular rate ở = 6.3 rad/s. At a certain instant, ris increasing at the rate of 630 mm/s. If the coefficient of kinetic friction between the collar and the rod is 0.46, calculate the friction force F exerted by the rod on the collar at this instant. Vertical Answer: F = i N
The position of the small 0.68-kg blocks in the smooth radial slots in the disk which rotates about a vertical axis at O is used to activate a speed-control mechanism. If each block moves from r = 162 mm to r = 200 mm while the speed of the disk changes slowly from 272 rev/min to 382 rev/min, design the spring by calculating the spring constant k of each spring. The springs are attached to the inner ends of the slots and to the blocks.
4. The pipe has a mass of 600 kg and is being towed behind a truck. If the angle 0 = 30°, determine the acceleration of the truck and the tension in the cable. The coefficient of kinetic friction between the pipe and the ground is Hk = 0.1. B 45° Ge 0.4 m
Determine the steady-state angle a if the constant force P = 170 N is applied to the cart of mass M = 43 kg. The cart travels on the slope of angle 0 = 17°. The pendulum bob has mass m = 9 kg and the rigid bar of length L = 1.1 m has negligible mass. Ignore all friction. M L m Answer: a = i
Object A, mass 12 kg, is attached to a pulley with mass 15 kg and a radius of 0.25 m. The pulley is rotating at 2000 rpm. If object A is to be reduced to half its initial speed, plant By braking the pulley bearings which creates a moment of resistance of 800 N-m. I want to know how far the object will slide down and what is the tension in the rope at that time. 12 kg 0.3 m
The cylindrical peg has a mass m and is confined to move along the smooth horizontal slot due to the rotation of the lever arm. (The figure shows the system as seen from above.) The angular rotation of the lever arm is e(t), wheret is in seconds. Obtain the equations of motion for the peg. r(0)
The homogeneous, solid cylinder with mass m = 4.8 kg and radius r = 0.24 m rolls along the inclined surface without slipping. If the initial angular velocity is w, = 2 rad/s (counterclockwise), and after a certain time lapse the angular velocity is w2 = 2.2 rad/s (clockwise), determine the magnitude of the linear impulse due to the frictional force during this time period. Let 0 = 46°.
*15-24. The small 20-lb block is placed on the inclined plane and subjected to 6-lb and 15-lb forces that act parallel with edges AB and AC, respectively. If the block is initially at rest, determine its speed when 1 = 3 s. The coefficient of kinetic friction between the block and the plane is μ = 0.2. Mk Problem 15-24 30° 6 lb 15 lb
The 10 N cylinder moves in a frictionless pipe. Spring constants are k1 = 150 N / m and k2 = 200 N / m. When the system is at rest, d = 0.5 m. (d is the distance from the right end of the arc k2). The system rotates around a fixed z-axis. Find the constant velocity of the cylinder for d = 0.20 m?
Determine the steady-state angle a if the constant force P = 115 N is applied to the cart of mass M = 24 kg. The cart travels on the slope of angle 0 = 20°. The pendulum bob has mass m = 7 kg and the rigid bar of length L = 1.5 m has negligible mass. Ignore all friction. %D P M L m Answer: a = i